Like the other posters have said, lineage is about proof your grade is legit. Everyone who has a grade in BJJ should be able to trace their lineage to Mitsuyo Maeda. In most cases the lineage will go to a member of the Gracie Family, but there are exceptions eg. Oswaldo Fadda, who trained directly under Maeda, and who also has his own lineage....

If you say you have a belt/grade in BJJ, but cannot declare your lineage, then you are a FAKE.... Check the BJJ Police section on the EFN Forum for examples of people with fake BJJ grades who have been exposed because they cannot declare their lineage.... If you fancy a laugh check the Bridlington Karate thread!

I think you are mistaken here. you have it the wrong way round. unless of course you did give ze marcello a belt?

When Nelson was awarded his Black Belt in Carlson Gracie Academy Rio,Carlson was in the USA working on the team and academy there.
Liborio and Bebeo were teaching at Carlson's in Rio and Carlson gave his blessing to them awarding Nelson the Black Belt while he was away.